Periodic ripples in suspended graphene

Details Periodic ripples in suspended graphene Periodic ripples in suspended graphene

2011-04-08

arxiv.org/abs/1104.1568v1

Phys. Rev. B 83 125422 (2011)

Physics

Condensed Matter

Materials Science

5 Figures

Scientific paper

We study the mechanism of wrinkling of suspended graphene, by means of atomistic simulations. We argue that the structural instability under edge compression is the essential physical reason for the formation of periodic ripples in graphene. The ripple wavelength and out-of-plane amplitude are found to obey 1/4-power scaling laws with respect to edge compression. Our results also show that parallel displacement of the clamped boundaries can induce periodic ripples, with oscillation amplitude roughly proportional to the 1/4 power of edge displacement. The results are fundamental to graphene's applications in electronics.

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